文章摘要
赵郁聪,靳刘萍,陈满儒,倪妍,李鸣,丁勇.单糖对玉米淀粉基复合膜性能的影响[J].包装工程,2020,41(3):150-155.
ZHAO Yu-cong,JIN Liu-ping,CHEN Man-ru,NI Yan,LI Ming,DING Yong.Effect of Monosaccharide Plasticizer on Mechanical Properties of Corn Starch-based Composite Film[J].Packaging Engineering,2020,41(3):150-155.
单糖对玉米淀粉基复合膜性能的影响
Effect of Monosaccharide Plasticizer on Mechanical Properties of Corn Starch-based Composite Film
投稿时间:2019-10-15  修订日期:2020-02-10
DOI:10.19554/j.cnki.1001-3563.2020.03.023
中文关键词: D-果糖  葡萄糖  增塑剂  复合膜  力学性能
英文关键词: D-fructose  glucose  plasticizer  composite films  mechanical property
基金项目:陕西省咸阳市科技计划(2017k02-24)
作者单位
赵郁聪 1.陕西科技大学西安 710021 
靳刘萍 1.陕西科技大学西安 710021 
陈满儒 1.陕西科技大学西安 710021 
倪妍 1.陕西科技大学西安 710021 
李鸣 2.西安斯莱克智能系统有限公司西安 710003 
丁勇 1.陕西科技大学西安 710021 
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中文摘要:
      目的 研究D-果糖和葡萄糖作为增塑剂对玉米淀粉-壳聚糖复合膜性能的影响。方法 糊化后的玉米淀粉溶液与壳聚糖溶液混合,分别添加5%,20%,35%,50%,65%(质量分数)的D-果糖及葡萄糖,均质后流延成膜;测定膜的力学性能,并通过扫描电镜、接触角、傅里叶红外扫描和X-衍射对复合膜相关特性进行表征。结果 成膜物质之间相容性好,增塑剂用量由5%增加至65%,膜的厚度增加,经D-果糖和葡萄糖增塑的复合膜抗拉强度分别由73.99,70.88 MPa减至18.08,40.53 MPa。经D-果糖增塑的复合膜断裂伸长率呈递增趋势,在添加量为65%时达到19.03%,经葡萄糖增塑的复合膜呈现递减趋势。结论 同一含量下,2种复合膜的厚度相近,抗拉强度相差不大,但经D-果糖增塑的复合膜断裂伸长率高,亲水性较好,更适合作为增塑剂应用在复合膜的制备中。
英文摘要:
      The paper aims to investigate the effects of D-fructose and glucose as plasticizers upon properties of corn starch-chitosan composite films. The gelatinized corn starch solution was blended with the chitosan solution, 5%, 20%, 35%, 50% and 65% (mass fraction) of D-fructose of glucose were added, respectively; and then they were homogenized and cast into a film. The mechanical properties of the film were measured, and morphology properties, contact angle, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) were used for characterization. The film-forming materials had good compatibility, the concentration of plasticizer was increased from 5% to 65% while the thickness of the film was increased, but the tensile strength of D-fructose and glucose plasticized films was decreased from 73.99, 70.88 MPa to 18.08, 40.53 MPa, respectively. The elongation at break of D-fructose plasticized film revealed an increasing trend, up to 19.03% at addition of 65%; while the glucose plasticized film displayed a decreasing trend. The thickness and tensile strength of the two plasticized films are similar at the same concentration, but the D-fructose plasticized film has high elongation at break and good hydrophilicity. It is more suitable to be used as a plasticizer in the preparation of composite films.
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